PSI - Issue 13

Sheikh Muhammad Zakir et al. / Procedia Structural Integrity 13 (2018) 1244–1249 Sheikh Muhammad Zakir et al. / Structural Integrity Procedia 00 (2018) 000–000

1249

6

4. Conclusions In this work, the static and dynamic compression tests experiments are performed to study the mechanical behavior of cubic shaped ALS glass specimens. The dynamic compression tests at an average strain-rate of 650 s -1 are completed using SHPB coupled with a high-speed camera to observe the dynamic failure process in glass specimens. The following outcomes may be drawn from current research work:  The tests at static and dynamic loading showed that the ALS glass compressive strength is rate sensitive, at low strain-rates this is due to the presence of defects like surface flaws and scratches on the surface ALS glass and high strain rate is because of loading conditions. The glass debris also supported this phenomenon, at low strain-rate the glass failed in small columns compared to fine particles in high strain rate loading. The average dynamic compressive strength of ALS glass is 1353.3 MPa.  In brittle materials like glass, the strain measurement is a challenging task, the strain history was recorded successfully for both static and dynamic compression loading from the gauges pasted on specimens, which will be useful in developing a constitutive model for numerical simulations.  High-speed images and associated stress-time curve presented that the axial cracks lead to cause the failure of specimen well before the maximum compressive strength attained by the specimen.  The overall failure of glass at dynamic loading is because of the axial splitting phenomenon and macroscopic axial cracks traveled at the speed of 800 meters per seconds. Acknowledgments The authors acknowledge the financial support from the National Science Foundation of China (grant numbers 11772268, 11522220, and 11527803). References [1] Y. An, B. Y. Joo, D.-T. Chung, and S.-Y. Choi, "Finite element simulation of brittle fracture of bulletproof glass system," Journal of Mechanical Science and Technology, vol. 28, no. 1, pp. 73-80, 2014. [2] A. K. Bandaru, L. Vetiyatil, and S. Ahmad, "The effect of hybridization on the ballistic impact behavior of hybrid composite armors," Composites Part B: Engineering, vol. 76, pp. 300-319, 2015. [3] I. Mohagheghian et al. , "Quasi-static bending and low velocity impact performance of monolithic and laminated glass windows employing chemically strengthened glass," European Journal of Mechanics-A/Solids, vol. 63, pp. 165-186, 2017. [4] J. Xu, Y. Li, B. Liu, M. Zhu, and D. Ge, "Experimental study on mechanical behavior of PVB laminated glass under quasi-static and dynamic loadings," Composites Part B: Engineering, vol. 42, no. 2, pp. 302-308, 2011. [5] S. S. Daryadel, P. R. Mantena, K. Kim, D. Stoddard, and A. Rajendran, "Dynamic response of glass under low-velocity impact and high strain-rate SHPB compression loading," Journal of Non-Crystalline Solids, vol. 432, pp. 432-439, 2016. [6] X. Nie, W. W. Chen, X. Sun, and D. W. Templeton, "Dynamic failure of borosilicate glass under compression/shear loading experiments," Journal of the American Ceramic Society, vol. 90, no. 8, pp. 2556-2562, 2007. [7] M. Peroni, G. Solomos, V. Pizzinato, and M. Larcher, "Experimental investigation of high strain-rate behaviour of glass," in Applied Mechanics and Materials , 2011, vol. 82, pp. 63-68: Trans Tech Publ. [8] X. Zhang, Y. Zou, H. Hao, X. Li, G. Ma, and K. Liu, "Laboratory test on dynamic material properties of annealed float glass," International Journal of Protective Structures, vol. 3, no. 4, pp. 407-430, 2012. [9] X. Zhang, H. Hao, and G. Ma, "Parametric study of laminated glass window response to blast loads," Engineering Structures, vol. 56, pp. 1707-1717, 2013. [10] P. Jannotti, G. Subhash, and A. K. Varshneya, "Ball impact response of unstrengthened and chemically strengthened glass bars," Journal of the American Ceramic Society, vol. 97, no. 1, pp. 189-197, 2014. [11] W. Zhen et al. , "A Comparative Study on the Effect of Loading Speed and Surface Scratches on the Flexural Strength of Aluminosilicate Glass: Annealed vs. Chemically Strengthened," Ceramics International, 2018. [12] G. Ravichandran and G. Subhash, "Critical appraisal of limiting strain rates for compression testing of ceramics in a split Hopkinson pressure bar," Journal of the American Ceramic Society, vol. 77, no. 1, pp. 263-267, 1994.